{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [],
   "source": [
    "import json\n",
    "from jsonpath import jsonpath\n",
    "import requests\n",
    "import pandas as pd"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'o_curinstrument': [{'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2103',\n",
       "   'PRESETTLEMENTPRICE': 62600,\n",
       "   'OPENPRICE': 63440,\n",
       "   'HIGHESTPRICE': 64330,\n",
       "   'LOWESTPRICE': 62890,\n",
       "   'CLOSEPRICE': 64170,\n",
       "   'SETTLEMENTPRICE': 63390,\n",
       "   'ZD1_CHG': 1570,\n",
       "   'ZD2_CHG': 790,\n",
       "   'VOLUME': 106671,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 68887,\n",
       "   'OPENINTERESTCHG': -11804,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2104',\n",
       "   'PRESETTLEMENTPRICE': 62730,\n",
       "   'OPENPRICE': 63390,\n",
       "   'HIGHESTPRICE': 64470,\n",
       "   'LOWESTPRICE': 63000,\n",
       "   'CLOSEPRICE': 64320,\n",
       "   'SETTLEMENTPRICE': 63560,\n",
       "   'ZD1_CHG': 1590,\n",
       "   'ZD2_CHG': 830,\n",
       "   'VOLUME': 199534,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 147830,\n",
       "   'OPENINTERESTCHG': 19979,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2105',\n",
       "   'PRESETTLEMENTPRICE': 62710,\n",
       "   'OPENPRICE': 63480,\n",
       "   'HIGHESTPRICE': 64510,\n",
       "   'LOWESTPRICE': 63030,\n",
       "   'CLOSEPRICE': 64370,\n",
       "   'SETTLEMENTPRICE': 63600,\n",
       "   'ZD1_CHG': 1660,\n",
       "   'ZD2_CHG': 890,\n",
       "   'VOLUME': 69650,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 75898,\n",
       "   'OPENINTERESTCHG': 5289,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2106',\n",
       "   'PRESETTLEMENTPRICE': 62640,\n",
       "   'OPENPRICE': 63400,\n",
       "   'HIGHESTPRICE': 64470,\n",
       "   'LOWESTPRICE': 63000,\n",
       "   'CLOSEPRICE': 64390,\n",
       "   'SETTLEMENTPRICE': 63620,\n",
       "   'ZD1_CHG': 1750,\n",
       "   'ZD2_CHG': 980,\n",
       "   'VOLUME': 22045,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 32707,\n",
       "   'OPENINTERESTCHG': 3916,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2107',\n",
       "   'PRESETTLEMENTPRICE': 62700,\n",
       "   'OPENPRICE': 63350,\n",
       "   'HIGHESTPRICE': 64420,\n",
       "   'LOWESTPRICE': 62950,\n",
       "   'CLOSEPRICE': 64330,\n",
       "   'SETTLEMENTPRICE': 63680,\n",
       "   'ZD1_CHG': 1630,\n",
       "   'ZD2_CHG': 980,\n",
       "   'VOLUME': 5058,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 11851,\n",
       "   'OPENINTERESTCHG': 1791,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2108',\n",
       "   'PRESETTLEMENTPRICE': 62420,\n",
       "   'OPENPRICE': 63350,\n",
       "   'HIGHESTPRICE': 64390,\n",
       "   'LOWESTPRICE': 62940,\n",
       "   'CLOSEPRICE': 64220,\n",
       "   'SETTLEMENTPRICE': 63470,\n",
       "   'ZD1_CHG': 1800,\n",
       "   'ZD2_CHG': 1050,\n",
       "   'VOLUME': 323,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 3475,\n",
       "   'OPENINTERESTCHG': 12,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2109',\n",
       "   'PRESETTLEMENTPRICE': 62470,\n",
       "   'OPENPRICE': 63350,\n",
       "   'HIGHESTPRICE': 64400,\n",
       "   'LOWESTPRICE': 62980,\n",
       "   'CLOSEPRICE': 64350,\n",
       "   'SETTLEMENTPRICE': 63520,\n",
       "   'ZD1_CHG': 1880,\n",
       "   'ZD2_CHG': 1050,\n",
       "   'VOLUME': 639,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 2937,\n",
       "   'OPENINTERESTCHG': 105,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2110',\n",
       "   'PRESETTLEMENTPRICE': 62650,\n",
       "   'OPENPRICE': 63340,\n",
       "   'HIGHESTPRICE': 64400,\n",
       "   'LOWESTPRICE': 62980,\n",
       "   'CLOSEPRICE': 64400,\n",
       "   'SETTLEMENTPRICE': 63380,\n",
       "   'ZD1_CHG': 1750,\n",
       "   'ZD2_CHG': 730,\n",
       "   'VOLUME': 78,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 678,\n",
       "   'OPENINTERESTCHG': 21,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2111',\n",
       "   'PRESETTLEMENTPRICE': 62630,\n",
       "   'OPENPRICE': 63370,\n",
       "   'HIGHESTPRICE': 64400,\n",
       "   'LOWESTPRICE': 63090,\n",
       "   'CLOSEPRICE': 64400,\n",
       "   'SETTLEMENTPRICE': 63660,\n",
       "   'ZD1_CHG': 1770,\n",
       "   'ZD2_CHG': 1030,\n",
       "   'VOLUME': 58,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 386,\n",
       "   'OPENINTERESTCHG': 22,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2112',\n",
       "   'PRESETTLEMENTPRICE': 62820,\n",
       "   'OPENPRICE': 63440,\n",
       "   'HIGHESTPRICE': 64370,\n",
       "   'LOWESTPRICE': 62940,\n",
       "   'CLOSEPRICE': 64370,\n",
       "   'SETTLEMENTPRICE': 63410,\n",
       "   'ZD1_CHG': 1550,\n",
       "   'ZD2_CHG': 590,\n",
       "   'VOLUME': 79,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 329,\n",
       "   'OPENINTERESTCHG': 55,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2201',\n",
       "   'PRESETTLEMENTPRICE': 62520,\n",
       "   'OPENPRICE': 63200,\n",
       "   'HIGHESTPRICE': 64310,\n",
       "   'LOWESTPRICE': 63090,\n",
       "   'CLOSEPRICE': 64270,\n",
       "   'SETTLEMENTPRICE': 63330,\n",
       "   'ZD1_CHG': 1750,\n",
       "   'ZD2_CHG': 810,\n",
       "   'VOLUME': 29,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 100,\n",
       "   'OPENINTERESTCHG': 16,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '2202',\n",
       "   'PRESETTLEMENTPRICE': 62480,\n",
       "   'OPENPRICE': 63100,\n",
       "   'HIGHESTPRICE': 64350,\n",
       "   'LOWESTPRICE': 63010,\n",
       "   'CLOSEPRICE': 64350,\n",
       "   'SETTLEMENTPRICE': 63650,\n",
       "   'ZD1_CHG': 1870,\n",
       "   'ZD2_CHG': 1170,\n",
       "   'VOLUME': 23,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 31,\n",
       "   'OPENINTERESTCHG': 14,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'cu_f    ',\n",
       "   'PRODUCTGROUPID': 'cu      ',\n",
       "   'PRODUCTSORTNO': 10,\n",
       "   'PRODUCTNAME': '铜                  ',\n",
       "   'DELIVERYMONTH': '小计',\n",
       "   'PRESETTLEMENTPRICE': '',\n",
       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': '',\n",
       "   'SETTLEMENTPRICE': '',\n",
       "   'ZD1_CHG': '',\n",
       "   'ZD2_CHG': '',\n",
       "   'VOLUME': 404187,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 345109,\n",
       "   'OPENINTERESTCHG': 19416,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 50},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2103',\n",
       "   'PRESETTLEMENTPRICE': 55850,\n",
       "   'OPENPRICE': 56420,\n",
       "   'HIGHESTPRICE': 57700,\n",
       "   'LOWESTPRICE': 56100,\n",
       "   'CLOSEPRICE': 57300,\n",
       "   'SETTLEMENTPRICE': 56570,\n",
       "   'ZD1_CHG': 1450,\n",
       "   'ZD2_CHG': 720,\n",
       "   'VOLUME': 390,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 1428,\n",
       "   'OPENINTERESTCHG': -269,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2104',\n",
       "   'PRESETTLEMENTPRICE': 55820,\n",
       "   'OPENPRICE': 56500,\n",
       "   'HIGHESTPRICE': 57380,\n",
       "   'LOWESTPRICE': 56100,\n",
       "   'CLOSEPRICE': 57240,\n",
       "   'SETTLEMENTPRICE': 56580,\n",
       "   'ZD1_CHG': 1420,\n",
       "   'ZD2_CHG': 760,\n",
       "   'VOLUME': 9582,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 12213,\n",
       "   'OPENINTERESTCHG': 184,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2105',\n",
       "   'PRESETTLEMENTPRICE': 55870,\n",
       "   'OPENPRICE': 56500,\n",
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       "   'CLOSEPRICE': 57340,\n",
       "   'SETTLEMENTPRICE': 56510,\n",
       "   'ZD1_CHG': 1470,\n",
       "   'ZD2_CHG': 640,\n",
       "   'VOLUME': 25206,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 10474,\n",
       "   'OPENINTERESTCHG': 1701,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
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       "   'SETTLEMENTPRICE': 56520,\n",
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       "   'TASVOLUME': '',\n",
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       "   'OPENINTERESTCHG': 16,\n",
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       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2107',\n",
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       "   'OPENPRICE': 56440,\n",
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       "   'LOWESTPRICE': 56130,\n",
       "   'CLOSEPRICE': 57320,\n",
       "   'SETTLEMENTPRICE': 56450,\n",
       "   'ZD1_CHG': 1290,\n",
       "   'ZD2_CHG': 420,\n",
       "   'VOLUME': 1542,\n",
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       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
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       "   'PRODUCTNAME': '铜(BC)              ',\n",
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       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 56470,\n",
       "   'SETTLEMENTPRICE': 56470,\n",
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       "   'ZD2_CHG': 1230,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
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       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2109',\n",
       "   'PRESETTLEMENTPRICE': 55250,\n",
       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 55990,\n",
       "   'SETTLEMENTPRICE': 55990,\n",
       "   'ZD1_CHG': 740,\n",
       "   'ZD2_CHG': 740,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 3,\n",
       "   'OPENINTERESTCHG': 0,\n",
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       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2110',\n",
       "   'PRESETTLEMENTPRICE': 55590,\n",
       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 56380,\n",
       "   'SETTLEMENTPRICE': 56380,\n",
       "   'ZD1_CHG': 790,\n",
       "   'ZD2_CHG': 790,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 1,\n",
       "   'OPENINTERESTCHG': 0,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
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       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 55940,\n",
       "   'SETTLEMENTPRICE': 55940,\n",
       "   'ZD1_CHG': 500,\n",
       "   'ZD2_CHG': 500,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 1,\n",
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       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2112',\n",
       "   'PRESETTLEMENTPRICE': 54800,\n",
       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 55900,\n",
       "   'SETTLEMENTPRICE': 55900,\n",
       "   'ZD1_CHG': 1100,\n",
       "   'ZD2_CHG': 1100,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 0,\n",
       "   'OPENINTERESTCHG': 0,\n",
       "   'ORDERNO': 0,\n",
       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
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       "   'PRODUCTNAME': '铜(BC)              ',\n",
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       "   'PRESETTLEMENTPRICE': 54520,\n",
       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 54520,\n",
       "   'SETTLEMENTPRICE': 54520,\n",
       "   'ZD1_CHG': 0,\n",
       "   'ZD2_CHG': 0,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
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       "  {'PRODUCTID': 'bc_f    ',\n",
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       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '2202',\n",
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       "   'OPENPRICE': '',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'CLOSEPRICE': 54690,\n",
       "   'SETTLEMENTPRICE': 54690,\n",
       "   'ZD1_CHG': 410,\n",
       "   'ZD2_CHG': 410,\n",
       "   'VOLUME': 0,\n",
       "   'TASVOLUME': '',\n",
       "   'OPENINTEREST': 0,\n",
       "   'OPENINTERESTCHG': 0,\n",
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       "   'ORDERNO2': 0},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
       "   'PRODUCTGROUPID': 'bc      ',\n",
       "   'PRODUCTSORTNO': 15,\n",
       "   'PRODUCTNAME': '铜(BC)              ',\n",
       "   'DELIVERYMONTH': '小计',\n",
       "   'PRESETTLEMENTPRICE': '',\n",
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       "   'VOLUME': 404187,\n",
       "   'TURNOVER': 1283.9588265,\n",
       "   'YEARVOLUME': 765.7248,\n",
       "   'YEARTURNOVER': 22620.2111585},\n",
       "  {'PRODUCTID': 'bc_f    ',\n",
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       "   'YEARVOLUME': 58.0883,\n",
       "   'YEARTURNOVER': 1529.516483},\n",
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       "   'VOLUME': 377780,\n",
       "   'TURNOVER': 311.8660155,\n",
       "   'YEARVOLUME': 936.3892,\n",
       "   'YEARTURNOVER': 7126.10437925},\n",
       "  {'PRODUCTID': 'zn_f    ',\n",
       "   'PRODUCTGROUPID': 'zn      ',\n",
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       "   'PRODUCTNAME': '锌                  ',\n",
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       "   'YEARVOLUME': 663.3127,\n",
       "   'YEARTURNOVER': 6766.11056625},\n",
       "  {'PRODUCTID': 'pb_f    ',\n",
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       "   'YEARVOLUME': 254.759,\n",
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       "   'YEARVOLUME': 2682.2184,\n",
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       "   'TURNOVER': 253.5076937,\n",
       "   'YEARVOLUME': 357.5288,\n",
       "   'YEARTURNOVER': 5898.2039553},\n",
       "  {'PRODUCTID': 'au_f    ',\n",
       "   'PRODUCTGROUPID': 'au      ',\n",
       "   'PRODUCTSORTNO': 50,\n",
       "   'PRODUCTNAME': '黄金                ',\n",
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       "   'YEARVOLUME': 596.87,\n",
       "   'YEARTURNOVER': 23206.367666},\n",
       "  {'PRODUCTID': 'ag_f    ',\n",
       "   'PRODUCTGROUPID': 'ag      ',\n",
       "   'PRODUCTSORTNO': 60,\n",
       "   'PRODUCTNAME': '白银                ',\n",
       "   'HIGHESTPRICE': 5768,\n",
       "   'LOWESTPRICE': 5420,\n",
       "   'AVGPRICE': 5569.653,\n",
       "   'VOLUME': 1182010,\n",
       "   'TURNOVER': 987.50783805,\n",
       "   'YEARVOLUME': 4882.0521,\n",
       "   'YEARTURNOVER': 40107.9319998},\n",
       "  {'PRODUCTID': 'rb_f    ',\n",
       "   'PRODUCTGROUPID': 'rb      ',\n",
       "   'PRODUCTSORTNO': 70,\n",
       "   'PRODUCTNAME': '螺纹钢              ',\n",
       "   'HIGHESTPRICE': 4672,\n",
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       "   'YEARVOLUME': 5735.257,\n",
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       "   'YEARVOLUME': 0.1037,\n",
       "   'YEARTURNOVER': 0.4858949},\n",
       "  {'PRODUCTID': 'hc_f    ',\n",
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       "   'AVGPRICE': 4679.639,\n",
       "   'VOLUME': 524031,\n",
       "   'TURNOVER': 245.2275903,\n",
       "   'YEARVOLUME': 2014.7625,\n",
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       "  {'PRODUCTID': 'ss_f    ',\n",
       "   'PRODUCTGROUPID': 'ss      ',\n",
       "   'PRODUCTSORTNO': 87,\n",
       "   'PRODUCTNAME': '不锈钢              ',\n",
       "   'HIGHESTPRICE': 15360,\n",
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       "   'AVGPRICE': 15105.537,\n",
       "   'VOLUME': 174978,\n",
       "   'TURNOVER': 132.15682925,\n",
       "   'YEARVOLUME': 478.2257,\n",
       "   'YEARTURNOVER': 3417.00255675},\n",
       "  {'PRODUCTID': 'sc_f    ',\n",
       "   'PRODUCTGROUPID': 'sc      ',\n",
       "   'PRODUCTSORTNO': 90,\n",
       "   'PRODUCTNAME': '原油                ',\n",
       "   'HIGHESTPRICE': 410.8,\n",
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       "   'AVGPRICE': 391.782,\n",
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       "   'TURNOVER': 565.901376,\n",
       "   'YEARVOLUME': 511.2092,\n",
       "   'YEARTURNOVER': 17469.915203},\n",
       "  {'PRODUCTID': 'lu_f    ',\n",
       "   'PRODUCTGROUPID': 'lu      ',\n",
       "   'PRODUCTSORTNO': 91,\n",
       "   'PRODUCTNAME': '低硫燃料油          ',\n",
       "   'HIGHESTPRICE': 3347,\n",
       "   'LOWESTPRICE': 3108,\n",
       "   'AVGPRICE': 3192.923,\n",
       "   'VOLUME': 85471,\n",
       "   'TURNOVER': 27.2902303,\n",
       "   'YEARVOLUME': 242.6646,\n",
       "   'YEARTURNOVER': 696.1571358},\n",
       "  {'PRODUCTID': 'fu_f    ',\n",
       "   'PRODUCTGROUPID': 'fu      ',\n",
       "   'PRODUCTSORTNO': 92,\n",
       "   'PRODUCTNAME': '燃料油              ',\n",
       "   'HIGHESTPRICE': 2420,\n",
       "   'LOWESTPRICE': 2305,\n",
       "   'AVGPRICE': 2356.698,\n",
       "   'VOLUME': 1179135,\n",
       "   'TURNOVER': 277.8864542,\n",
       "   'YEARVOLUME': 4214.6206,\n",
       "   'YEARTURNOVER': 9229.8364066},\n",
       "  {'PRODUCTID': 'bu_f    ',\n",
       "   'PRODUCTGROUPID': 'bu      ',\n",
       "   'PRODUCTSORTNO': 95,\n",
       "   'PRODUCTNAME': '石油沥青            ',\n",
       "   'HIGHESTPRICE': 3176,\n",
       "   'LOWESTPRICE': 2950,\n",
       "   'AVGPRICE': 3006.829,\n",
       "   'VOLUME': 565981,\n",
       "   'TURNOVER': 170.1808326,\n",
       "   'YEARVOLUME': 1808.0886,\n",
       "   'YEARTURNOVER': 4930.0884846},\n",
       "  {'PRODUCTID': 'ru_f    ',\n",
       "   'PRODUCTGROUPID': 'ru      ',\n",
       "   'PRODUCTSORTNO': 100,\n",
       "   'PRODUCTNAME': '天然橡胶            ',\n",
       "   'HIGHESTPRICE': 16600,\n",
       "   'LOWESTPRICE': 15135,\n",
       "   'AVGPRICE': 15434.216,\n",
       "   'VOLUME': 668811,\n",
       "   'TURNOVER': 1032.257299,\n",
       "   'YEARVOLUME': 1642.9982,\n",
       "   'YEARTURNOVER': 23940.147209},\n",
       "  {'PRODUCTID': 'nr_f    ',\n",
       "   'PRODUCTGROUPID': 'nr      ',\n",
       "   'PRODUCTSORTNO': 105,\n",
       "   'PRODUCTNAME': '20号胶              ',\n",
       "   'HIGHESTPRICE': 11860,\n",
       "   'LOWESTPRICE': 11020,\n",
       "   'AVGPRICE': 11435.682,\n",
       "   'VOLUME': 59593,\n",
       "   'TURNOVER': 68.1486585,\n",
       "   'YEARVOLUME': 91.2344,\n",
       "   'YEARTURNOVER': 989.498244},\n",
       "  {'PRODUCTID': 'sp_f    ',\n",
       "   'PRODUCTGROUPID': 'sp      ',\n",
       "   'PRODUCTSORTNO': 110,\n",
       "   'PRODUCTNAME': '纸浆                ',\n",
       "   'HIGHESTPRICE': 7010,\n",
       "   'LOWESTPRICE': 6340,\n",
       "   'AVGPRICE': 6924.408,\n",
       "   'VOLUME': 554648,\n",
       "   'TURNOVER': 384.0609028,\n",
       "   'YEARVOLUME': 1892.8151,\n",
       "   'YEARTURNOVER': 12103.4026036},\n",
       "  {'PRODUCTID': '总计',\n",
       "   'PRODUCTGROUPID': '',\n",
       "   'PRODUCTSORTNO': 9999,\n",
       "   'PRODUCTNAME': '总计',\n",
       "   'HIGHESTPRICE': '',\n",
       "   'LOWESTPRICE': '',\n",
       "   'AVGPRICE': '',\n",
       "   'VOLUME': 9099800,\n",
       "   'TURNOVER': 8817.9864906,\n",
       "   'YEARVOLUME': 29828.9229,\n",
       "   'YEARTURNOVER': 251295.70090485}],\n",
       " 'o_curmetalindex': [{'TRADINGDAY': '20210219',\n",
       "   'LASTPRICE': 3641.75,\n",
       "   'OPENPRICE': 3590.6,\n",
       "   'CLOSEPRICE': 3641.75,\n",
       "   'PRECLOSEPRICE': 3576.09,\n",
       "   'UPDOWN': 65.66,\n",
       "   'UPDOWN1': 95.38,\n",
       "   'UPDOWN2': 60.72,\n",
       "   'HIGHESTPRICE': 3649.08,\n",
       "   'LOWESTPRICE': 3584.5,\n",
       "   'AVGPRICE': 3604.04,\n",
       "   'SETTLEMENTPRICE': 3607.09}],\n",
       " 'o_year': '2021',\n",
       " 'o_month': '02',\n",
       " 'o_day': '19',\n",
       " 'o_weekday': '五',\n",
       " 'o_year_num': '30',\n",
       " 'o_total_num': '6882',\n",
       " 'o_trade_day': '6890',\n",
       " 'o_IMChangeDate': '20150813',\n",
       " 'showlength': '1',\n",
       " 'o_code': 0,\n",
       " 'o_msg': '交易快讯查询成功',\n",
       " 'report_date': '20210219',\n",
       " 'update_date': '20210219 20:00:44',\n",
       " 'print_date': '20210219 20:00:45'}"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 通过爬虫获取 JSON 格式文本\n",
    "# 方法一：使用 json.loads() 方法 读取 JSON 格式文本\n",
    "url = 'http://www.shfe.com.cn/data/dailydata/kx/kx20210219.dat'\n",
    "res = requests.get(url)\n",
    "json_data = json.loads(res.text)\n",
    "json_data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>260</th>\n",
       "      <td>20220219</td>\n",
       "      <td>SQH</td>\n",
       "      <td>纸浆</td>\n",
       "      <td>2</td>\n",
       "      <td></td>\n",
       "      <td>9</td>\n",
       "      <td>6402</td>\n",
       "      <td>2202</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>261</th>\n",
       "      <td>20220219</td>\n",
       "      <td>SQH</td>\n",
       "      <td>纸浆</td>\n",
       "      <td>554648</td>\n",
       "      <td></td>\n",
       "      <td>421391</td>\n",
       "      <td></td>\n",
       "      <td>小计</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>262</th>\n",
       "      <td>20220219</td>\n",
       "      <td>SQH</td>\n",
       "      <td>总计</td>\n",
       "      <td>9099800</td>\n",
       "      <td>0</td>\n",
       "      <td>6762240</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>263</th>\n",
       "      <td>20220219</td>\n",
       "      <td>SQH</td>\n",
       "      <td>原油TAS</td>\n",
       "      <td></td>\n",
       "      <td>0</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>2104</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>264</th>\n",
       "      <td>20220219</td>\n",
       "      <td>SQH</td>\n",
       "      <td>原油TAS</td>\n",
       "      <td></td>\n",
       "      <td>0</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>小计</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>265 rows × 8 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "           日期  交易所   商品名称    正常成交量 TAS成交量      持仓量    收盘价    备注\n",
       "0    20220219  SQH      铜   106671           68887  64170  2103\n",
       "1    20220219  SQH      铜   199534          147830  64320  2104\n",
       "2    20220219  SQH      铜    69650           75898  64370  2105\n",
       "3    20220219  SQH      铜    22045           32707  64390  2106\n",
       "4    20220219  SQH      铜     5058           11851  64330  2107\n",
       "..        ...  ...    ...      ...    ...      ...    ...   ...\n",
       "260  20220219  SQH     纸浆        2               9   6402  2202\n",
       "261  20220219  SQH     纸浆   554648          421391           小计\n",
       "262  20220219  SQH     总计  9099800      0  6762240             \n",
       "263  20220219  SQH  原油TAS               0                  2104\n",
       "264  20220219  SQH  原油TAS               0                    小计\n",
       "\n",
       "[265 rows x 8 columns]"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 使用 json 库读取 JSON 内容\n",
    "datas_heyue = []\n",
    "results_heyue = json_data['o_curinstrument']\n",
    "for heyue in results_heyue:\n",
    "    data_heyue = {\n",
    "                '日期': '20220219',\n",
    "                '交易所': 'SQH',\n",
    "                '商品名称': heyue['PRODUCTNAME'].strip(),\n",
    "                '正常成交量': heyue['VOLUME'],\n",
    "                'TAS成交量': heyue['TASVOLUME'],\n",
    "                '持仓量': heyue['OPENINTEREST'],\n",
    "                '收盘价': heyue['CLOSEPRICE'],\n",
    "                '备注':heyue['DELIVERYMONTH'].strip()\n",
    "                }\n",
    "    datas_heyue.append(data_heyue)\n",
    "df_heyue = pd.DataFrame(datas_heyue)\n",
    "df_heyue"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
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       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>PRODUCTID</th>\n",
       "      <th>PRODUCTGROUPID</th>\n",
       "      <th>PRODUCTSORTNO</th>\n",
       "      <th>PRODUCTNAME</th>\n",
       "      <th>DELIVERYMONTH</th>\n",
       "      <th>PRESETTLEMENTPRICE</th>\n",
       "      <th>OPENPRICE</th>\n",
       "      <th>HIGHESTPRICE</th>\n",
       "      <th>LOWESTPRICE</th>\n",
       "      <th>CLOSEPRICE</th>\n",
       "      <th>SETTLEMENTPRICE</th>\n",
       "      <th>ZD1_CHG</th>\n",
       "      <th>ZD2_CHG</th>\n",
       "      <th>VOLUME</th>\n",
       "      <th>TASVOLUME</th>\n",
       "      <th>OPENINTEREST</th>\n",
       "      <th>OPENINTERESTCHG</th>\n",
       "      <th>ORDERNO</th>\n",
       "      <th>ORDERNO2</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>cu_f</td>\n",
       "      <td>cu</td>\n",
       "      <td>10</td>\n",
       "      <td>铜</td>\n",
       "      <td>2103</td>\n",
       "      <td>62600</td>\n",
       "      <td>63440</td>\n",
       "      <td>64330</td>\n",
       "      <td>62890</td>\n",
       "      <td>64170</td>\n",
       "      <td>63390</td>\n",
       "      <td>1570</td>\n",
       "      <td>790</td>\n",
       "      <td>106671</td>\n",
       "      <td></td>\n",
       "      <td>68887</td>\n",
       "      <td>-11804</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>cu_f</td>\n",
       "      <td>cu</td>\n",
       "      <td>10</td>\n",
       "      <td>铜</td>\n",
       "      <td>2104</td>\n",
       "      <td>62730</td>\n",
       "      <td>63390</td>\n",
       "      <td>64470</td>\n",
       "      <td>63000</td>\n",
       "      <td>64320</td>\n",
       "      <td>63560</td>\n",
       "      <td>1590</td>\n",
       "      <td>830</td>\n",
       "      <td>199534</td>\n",
       "      <td></td>\n",
       "      <td>147830</td>\n",
       "      <td>19979</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>cu_f</td>\n",
       "      <td>cu</td>\n",
       "      <td>10</td>\n",
       "      <td>铜</td>\n",
       "      <td>2105</td>\n",
       "      <td>62710</td>\n",
       "      <td>63480</td>\n",
       "      <td>64510</td>\n",
       "      <td>63030</td>\n",
       "      <td>64370</td>\n",
       "      <td>63600</td>\n",
       "      <td>1660</td>\n",
       "      <td>890</td>\n",
       "      <td>69650</td>\n",
       "      <td></td>\n",
       "      <td>75898</td>\n",
       "      <td>5289</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>cu_f</td>\n",
       "      <td>cu</td>\n",
       "      <td>10</td>\n",
       "      <td>铜</td>\n",
       "      <td>2106</td>\n",
       "      <td>62640</td>\n",
       "      <td>63400</td>\n",
       "      <td>64470</td>\n",
       "      <td>63000</td>\n",
       "      <td>64390</td>\n",
       "      <td>63620</td>\n",
       "      <td>1750</td>\n",
       "      <td>980</td>\n",
       "      <td>22045</td>\n",
       "      <td></td>\n",
       "      <td>32707</td>\n",
       "      <td>3916</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>cu_f</td>\n",
       "      <td>cu</td>\n",
       "      <td>10</td>\n",
       "      <td>铜</td>\n",
       "      <td>2107</td>\n",
       "      <td>62700</td>\n",
       "      <td>63350</td>\n",
       "      <td>64420</td>\n",
       "      <td>62950</td>\n",
       "      <td>64330</td>\n",
       "      <td>63680</td>\n",
       "      <td>1630</td>\n",
       "      <td>980</td>\n",
       "      <td>5058</td>\n",
       "      <td></td>\n",
       "      <td>11851</td>\n",
       "      <td>1791</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>...</th>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>260</th>\n",
       "      <td>sp_f</td>\n",
       "      <td>sp</td>\n",
       "      <td>110</td>\n",
       "      <td>纸浆</td>\n",
       "      <td>2202</td>\n",
       "      <td>6390</td>\n",
       "      <td>6402</td>\n",
       "      <td>6402</td>\n",
       "      <td>6402</td>\n",
       "      <td>6402</td>\n",
       "      <td>6402</td>\n",
       "      <td>12</td>\n",
       "      <td>12</td>\n",
       "      <td>2</td>\n",
       "      <td></td>\n",
       "      <td>9</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>261</th>\n",
       "      <td>sp_f</td>\n",
       "      <td>sp</td>\n",
       "      <td>110</td>\n",
       "      <td>纸浆</td>\n",
       "      <td>小计</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>554648</td>\n",
       "      <td></td>\n",
       "      <td>421391</td>\n",
       "      <td>28567</td>\n",
       "      <td>0</td>\n",
       "      <td>50</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>262</th>\n",
       "      <td>总计</td>\n",
       "      <td></td>\n",
       "      <td>9999</td>\n",
       "      <td>总计</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>9099800</td>\n",
       "      <td>0</td>\n",
       "      <td>6762240</td>\n",
       "      <td>288493</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>263</th>\n",
       "      <td>sc_tas</td>\n",
       "      <td>sc_tas</td>\n",
       "      <td>90</td>\n",
       "      <td>原油TAS</td>\n",
       "      <td>2104</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>0</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>999</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>264</th>\n",
       "      <td>sc_tas</td>\n",
       "      <td>sc_tas</td>\n",
       "      <td>90</td>\n",
       "      <td>原油TAS</td>\n",
       "      <td>小计</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>0</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>999</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>265 rows × 19 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "    PRODUCTID PRODUCTGROUPID  PRODUCTSORTNO          PRODUCTNAME  \\\n",
       "0    cu_f           cu                   10  铜                     \n",
       "1    cu_f           cu                   10  铜                     \n",
       "2    cu_f           cu                   10  铜                     \n",
       "3    cu_f           cu                   10  铜                     \n",
       "4    cu_f           cu                   10  铜                     \n",
       "..        ...            ...            ...                  ...   \n",
       "260  sp_f           sp                  110   纸浆                   \n",
       "261  sp_f           sp                  110   纸浆                   \n",
       "262        总计                          9999                   总计   \n",
       "263  sc_tas         sc_tas               90   原油TAS                \n",
       "264  sc_tas         sc_tas               90   原油TAS                \n",
       "\n",
       "    DELIVERYMONTH PRESETTLEMENTPRICE OPENPRICE HIGHESTPRICE LOWESTPRICE  \\\n",
       "0            2103              62600     63440        64330       62890   \n",
       "1            2104              62730     63390        64470       63000   \n",
       "2            2105              62710     63480        64510       63030   \n",
       "3            2106              62640     63400        64470       63000   \n",
       "4            2107              62700     63350        64420       62950   \n",
       "..            ...                ...       ...          ...         ...   \n",
       "260          2202               6390      6402         6402        6402   \n",
       "261            小计                                                         \n",
       "262                                                                       \n",
       "263          2104                                                         \n",
       "264            小计                                                         \n",
       "\n",
       "    CLOSEPRICE SETTLEMENTPRICE ZD1_CHG ZD2_CHG   VOLUME TASVOLUME  \\\n",
       "0        64170           63390    1570     790   106671             \n",
       "1        64320           63560    1590     830   199534             \n",
       "2        64370           63600    1660     890    69650             \n",
       "3        64390           63620    1750     980    22045             \n",
       "4        64330           63680    1630     980     5058             \n",
       "..         ...             ...     ...     ...      ...       ...   \n",
       "260       6402            6402      12      12        2             \n",
       "261                                              554648             \n",
       "262                                             9099800         0   \n",
       "263                                                             0   \n",
       "264                                                             0   \n",
       "\n",
       "    OPENINTEREST OPENINTERESTCHG  ORDERNO  ORDERNO2  \n",
       "0          68887          -11804        0         0  \n",
       "1         147830           19979        0         0  \n",
       "2          75898            5289        0         0  \n",
       "3          32707            3916        0         0  \n",
       "4          11851            1791        0         0  \n",
       "..           ...             ...      ...       ...  \n",
       "260            9               0        0         0  \n",
       "261       421391           28567        0        50  \n",
       "262      6762240          288493        0         0  \n",
       "263                                   999         0  \n",
       "264                                   999         0  \n",
       "\n",
       "[265 rows x 19 columns]"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 方法二：使用 pandas 库的 json_normalize() 方法读取多层嵌套 JSON 格式文本\n",
    "df_json = pd.json_normalize(json_data, ['o_curinstrument'],max_level=1)\n",
    "df_json"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
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       "\n",
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       "\n",
       "    .dataframe thead th {\n",
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       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>product_name</th>\n",
       "      <th>volume</th>\n",
       "      <th>TAS_volume</th>\n",
       "      <th>open_interest</th>\n",
       "      <th>close_price</th>\n",
       "      <th>delivery_month</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>铜</td>\n",
       "      <td>106671</td>\n",
       "      <td></td>\n",
       "      <td>68887</td>\n",
       "      <td>64170</td>\n",
       "      <td>2103</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>铜</td>\n",
       "      <td>199534</td>\n",
       "      <td></td>\n",
       "      <td>147830</td>\n",
       "      <td>64320</td>\n",
       "      <td>2104</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>铜</td>\n",
       "      <td>69650</td>\n",
       "      <td></td>\n",
       "      <td>75898</td>\n",
       "      <td>64370</td>\n",
       "      <td>2105</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>铜</td>\n",
       "      <td>22045</td>\n",
       "      <td></td>\n",
       "      <td>32707</td>\n",
       "      <td>64390</td>\n",
       "      <td>2106</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>铜</td>\n",
       "      <td>5058</td>\n",
       "      <td></td>\n",
       "      <td>11851</td>\n",
       "      <td>64330</td>\n",
       "      <td>2107</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>...</th>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>281</th>\n",
       "      <td>石油沥青</td>\n",
       "      <td>565981</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>282</th>\n",
       "      <td>天然橡胶</td>\n",
       "      <td>668811</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>283</th>\n",
       "      <td>20号胶</td>\n",
       "      <td>59593</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>284</th>\n",
       "      <td>纸浆</td>\n",
       "      <td>554648</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>285</th>\n",
       "      <td>总计</td>\n",
       "      <td>9099800</td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>286 rows × 6 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "            product_name   volume TAS_volume open_interest close_price  \\\n",
       "0    铜                     106671                    68887       64170   \n",
       "1    铜                     199534                   147830       64320   \n",
       "2    铜                      69650                    75898       64370   \n",
       "3    铜                      22045                    32707       64390   \n",
       "4    铜                       5058                    11851       64330   \n",
       "..                   ...      ...        ...           ...         ...   \n",
       "281     石油沥青               565981                                        \n",
       "282     天然橡胶               668811                                        \n",
       "283   20号胶                  59593                                        \n",
       "284   纸浆                   554648                                        \n",
       "285                   总计  9099800                                        \n",
       "\n",
       "    delivery_month  \n",
       "0             2103  \n",
       "1             2104  \n",
       "2             2105  \n",
       "3             2106  \n",
       "4             2107  \n",
       "..             ...  \n",
       "281                 \n",
       "282                 \n",
       "283                 \n",
       "284                 \n",
       "285                 \n",
       "\n",
       "[286 rows x 6 columns]"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 方法三：使用 jsonpath 库读取 JSON 格式文本\n",
    "product_name = jsonpath(json_data, '$..PRODUCTNAME')\n",
    "volume = jsonpath(json_data, '$..VOLUME')\n",
    "TAS_volume = jsonpath(json_data, '$..TASVOLUME')\n",
    "open_interest = jsonpath(json_data, '$..OPENINTEREST')\n",
    "close_price = jsonpath(json_data, '$..CLOSEPRICE')\n",
    "delivery_month = jsonpath(json_data, '$..DELIVERYMONTH')\n",
    "list_content = [product_name,volume,TAS_volume,open_interest,close_price,delivery_month]\n",
    "df_jsonpath = pd.DataFrame(list_content)\n",
    "df_jsonpath = df_jsonpath.T\n",
    "df_jsonpath.rename(columns={0:'product_name',1:'volume',2:'TAS_volume',3:'open_interest',4:'close_price',5:'delivery_month'},inplace=True)\n",
    "df_jsonpath = df_jsonpath.applymap(str) # 将所有元素转换为文本\n",
    "df_jsonpath = df_jsonpath.applymap(lambda x:x.replace('None','')) # 替换内容\n",
    "df_jsonpath"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'{\\n    \"o_IMChangeDate\": \"20150813\",\\n    \"o_code\": 0,\\n    \"o_curinstrument\": [\\n        {\\n            \"CLOSEPRICE\": 64170,\\n            \"DELIVERYMONTH\": \"2103\",\\n            \"HIGHESTPRICE\": 64330,\\n            \"LOWESTPRICE\": 62890,\\n            \"OPENINTEREST\": 68887,\\n            \"OPENINTERESTCHG\": -11804,\\n            \"OPENPRICE\": 63440,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62600,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63390,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 106671,\\n            \"ZD1_CHG\": 1570,\\n            \"ZD2_CHG\": 790\\n        },\\n        {\\n            \"CLOSEPRICE\": 64320,\\n            \"DELIVERYMONTH\": \"2104\",\\n            \"HIGHESTPRICE\": 64470,\\n            \"LOWESTPRICE\": 63000,\\n            \"OPENINTEREST\": 147830,\\n            \"OPENINTERESTCHG\": 19979,\\n            \"OPENPRICE\": 63390,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62730,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63560,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 199534,\\n            \"ZD1_CHG\": 1590,\\n            \"ZD2_CHG\": 830\\n        },\\n        {\\n            \"CLOSEPRICE\": 64370,\\n            \"DELIVERYMONTH\": \"2105\",\\n            \"HIGHESTPRICE\": 64510,\\n            \"LOWESTPRICE\": 63030,\\n            \"OPENINTEREST\": 75898,\\n            \"OPENINTERESTCHG\": 5289,\\n            \"OPENPRICE\": 63480,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62710,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63600,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 69650,\\n            \"ZD1_CHG\": 1660,\\n            \"ZD2_CHG\": 890\\n        },\\n        {\\n            \"CLOSEPRICE\": 64390,\\n            \"DELIVERYMONTH\": \"2106\",\\n            \"HIGHESTPRICE\": 64470,\\n            \"LOWESTPRICE\": 63000,\\n            \"OPENINTEREST\": 32707,\\n            \"OPENINTERESTCHG\": 3916,\\n            \"OPENPRICE\": 63400,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62640,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63620,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 22045,\\n            \"ZD1_CHG\": 1750,\\n            \"ZD2_CHG\": 980\\n        },\\n        {\\n            \"CLOSEPRICE\": 64330,\\n            \"DELIVERYMONTH\": \"2107\",\\n            \"HIGHESTPRICE\": 64420,\\n            \"LOWESTPRICE\": 62950,\\n            \"OPENINTEREST\": 11851,\\n            \"OPENINTERESTCHG\": 1791,\\n            \"OPENPRICE\": 63350,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62700,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63680,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 5058,\\n            \"ZD1_CHG\": 1630,\\n            \"ZD2_CHG\": 980\\n        },\\n        {\\n            \"CLOSEPRICE\": 64220,\\n            \"DELIVERYMONTH\": \"2108\",\\n            \"HIGHESTPRICE\": 64390,\\n            \"LOWESTPRICE\": 62940,\\n            \"OPENINTEREST\": 3475,\\n            \"OPENINTERESTCHG\": 12,\\n            \"OPENPRICE\": 63350,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62420,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63470,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 323,\\n            \"ZD1_CHG\": 1800,\\n            \"ZD2_CHG\": 1050\\n        },\\n        {\\n            \"CLOSEPRICE\": 64350,\\n            \"DELIVERYMONTH\": \"2109\",\\n            \"HIGHESTPRICE\": 64400,\\n            \"LOWESTPRICE\": 62980,\\n            \"OPENINTEREST\": 2937,\\n            \"OPENINTERESTCHG\": 105,\\n            \"OPENPRICE\": 63350,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62470,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63520,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 639,\\n            \"ZD1_CHG\": 1880,\\n            \"ZD2_CHG\": 1050\\n        },\\n        {\\n            \"CLOSEPRICE\": 64400,\\n            \"DELIVERYMONTH\": \"2110\",\\n            \"HIGHESTPRICE\": 64400,\\n            \"LOWESTPRICE\": 62980,\\n            \"OPENINTEREST\": 678,\\n            \"OPENINTERESTCHG\": 21,\\n            \"OPENPRICE\": 63340,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62650,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63380,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 78,\\n            \"ZD1_CHG\": 1750,\\n            \"ZD2_CHG\": 730\\n        },\\n        {\\n            \"CLOSEPRICE\": 64400,\\n            \"DELIVERYMONTH\": \"2111\",\\n            \"HIGHESTPRICE\": 64400,\\n            \"LOWESTPRICE\": 63090,\\n            \"OPENINTEREST\": 386,\\n            \"OPENINTERESTCHG\": 22,\\n            \"OPENPRICE\": 63370,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62630,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63660,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 58,\\n            \"ZD1_CHG\": 1770,\\n            \"ZD2_CHG\": 1030\\n        },\\n        {\\n            \"CLOSEPRICE\": 64370,\\n            \"DELIVERYMONTH\": \"2112\",\\n            \"HIGHESTPRICE\": 64370,\\n            \"LOWESTPRICE\": 62940,\\n            \"OPENINTEREST\": 329,\\n            \"OPENINTERESTCHG\": 55,\\n            \"OPENPRICE\": 63440,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62820,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63410,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 79,\\n            \"ZD1_CHG\": 1550,\\n            \"ZD2_CHG\": 590\\n        },\\n        {\\n            \"CLOSEPRICE\": 64270,\\n            \"DELIVERYMONTH\": \"2201\",\\n            \"HIGHESTPRICE\": 64310,\\n            \"LOWESTPRICE\": 63090,\\n            \"OPENINTEREST\": 100,\\n            \"OPENINTERESTCHG\": 16,\\n            \"OPENPRICE\": 63200,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62520,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63330,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 29,\\n            \"ZD1_CHG\": 1750,\\n            \"ZD2_CHG\": 810\\n        },\\n        {\\n            \"CLOSEPRICE\": 64350,\\n            \"DELIVERYMONTH\": \"2202\",\\n            \"HIGHESTPRICE\": 64350,\\n            \"LOWESTPRICE\": 63010,\\n            \"OPENINTEREST\": 31,\\n            \"OPENINTERESTCHG\": 14,\\n            \"OPENPRICE\": 63100,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 62480,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": 63650,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 23,\\n            \"ZD1_CHG\": 1870,\\n            \"ZD2_CHG\": 1170\\n        },\\n        {\\n            \"CLOSEPRICE\": \"\",\\n            \"DELIVERYMONTH\": \"小计\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 345109,\\n            \"OPENINTERESTCHG\": 19416,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 50,\\n            \"PRESETTLEMENTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"SETTLEMENTPRICE\": \"\",\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 404187,\\n            \"ZD1_CHG\": \"\",\\n            \"ZD2_CHG\": \"\"\\n        },\\n        {\\n            \"CLOSEPRICE\": 57300,\\n            \"DELIVERYMONTH\": \"2103\",\\n            \"HIGHESTPRICE\": 57700,\\n            \"LOWESTPRICE\": 56100,\\n            \"OPENINTEREST\": 1428,\\n            \"OPENINTERESTCHG\": -269,\\n            \"OPENPRICE\": 56420,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55850,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56570,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 390,\\n            \"ZD1_CHG\": 1450,\\n            \"ZD2_CHG\": 720\\n        },\\n        {\\n            \"CLOSEPRICE\": 57240,\\n            \"DELIVERYMONTH\": \"2104\",\\n            \"HIGHESTPRICE\": 57380,\\n            \"LOWESTPRICE\": 56100,\\n            \"OPENINTEREST\": 12213,\\n            \"OPENINTERESTCHG\": 184,\\n            \"OPENPRICE\": 56500,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55820,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56580,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 9582,\\n            \"ZD1_CHG\": 1420,\\n            \"ZD2_CHG\": 760\\n        },\\n        {\\n            \"CLOSEPRICE\": 57340,\\n            \"DELIVERYMONTH\": \"2105\",\\n            \"HIGHESTPRICE\": 57370,\\n            \"LOWESTPRICE\": 56060,\\n            \"OPENINTEREST\": 10474,\\n            \"OPENINTERESTCHG\": 1701,\\n            \"OPENPRICE\": 56500,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55870,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56510,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 25206,\\n            \"ZD1_CHG\": 1470,\\n            \"ZD2_CHG\": 640\\n        },\\n        {\\n            \"CLOSEPRICE\": 57270,\\n            \"DELIVERYMONTH\": \"2106\",\\n            \"HIGHESTPRICE\": 57500,\\n            \"LOWESTPRICE\": 56120,\\n            \"OPENINTEREST\": 322,\\n            \"OPENINTERESTCHG\": 16,\\n            \"OPENPRICE\": 56520,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55980,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56520,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 1638,\\n            \"ZD1_CHG\": 1290,\\n            \"ZD2_CHG\": 540\\n        },\\n        {\\n            \"CLOSEPRICE\": 57320,\\n            \"DELIVERYMONTH\": \"2107\",\\n            \"HIGHESTPRICE\": 57360,\\n            \"LOWESTPRICE\": 56130,\\n            \"OPENINTEREST\": 161,\\n            \"OPENINTERESTCHG\": 38,\\n            \"OPENPRICE\": 56440,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 56030,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56450,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 1542,\\n            \"ZD1_CHG\": 1290,\\n            \"ZD2_CHG\": 420\\n        },\\n        {\\n            \"CLOSEPRICE\": 56470,\\n            \"DELIVERYMONTH\": \"2108\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 1,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55240,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56470,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 1230,\\n            \"ZD2_CHG\": 1230\\n        },\\n        {\\n            \"CLOSEPRICE\": 55990,\\n            \"DELIVERYMONTH\": \"2109\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 3,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55250,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 55990,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 740,\\n            \"ZD2_CHG\": 740\\n        },\\n        {\\n            \"CLOSEPRICE\": 56380,\\n            \"DELIVERYMONTH\": \"2110\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 1,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55590,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 56380,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 790,\\n            \"ZD2_CHG\": 790\\n        },\\n        {\\n            \"CLOSEPRICE\": 55940,\\n            \"DELIVERYMONTH\": \"2111\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 1,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 55440,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 55940,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 500,\\n            \"ZD2_CHG\": 500\\n        },\\n        {\\n            \"CLOSEPRICE\": 55900,\\n            \"DELIVERYMONTH\": \"2112\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 0,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 54800,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 55900,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 1100,\\n            \"ZD2_CHG\": 1100\\n        },\\n        {\\n            \"CLOSEPRICE\": 54520,\\n            \"DELIVERYMONTH\": \"2201\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 0,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 54520,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 54520,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 0,\\n            \"ZD2_CHG\": 0\\n        },\\n        {\\n            \"CLOSEPRICE\": 54690,\\n            \"DELIVERYMONTH\": \"2202\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 0,\\n            \"OPENINTERESTCHG\": 0,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 54280,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": 54690,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 0,\\n            \"ZD1_CHG\": 410,\\n            \"ZD2_CHG\": 410\\n        },\\n        {\\n            \"CLOSEPRICE\": \"\",\\n            \"DELIVERYMONTH\": \"小计\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 24604,\\n            \"OPENINTERESTCHG\": 1670,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 50,\\n            \"PRESETTLEMENTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"SETTLEMENTPRICE\": \"\",\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 38358,\\n            \"ZD1_CHG\": \"\",\\n            \"ZD2_CHG\": \"\"\\n        },\\n        {\\n            \"CLOSEPRICE\": 16485,\\n            \"DELIVERYMONTH\": \"2103\",\\n            \"HIGHESTPRICE\": 16660,\\n            \"LOWESTPRICE\": 16385,\\n            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\"SETTLEMENTPRICE\": 6886,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 12527,\\n            \"ZD1_CHG\": 160,\\n            \"ZD2_CHG\": 106\\n        },\\n        {\\n            \"CLOSEPRICE\": 6866,\\n            \"DELIVERYMONTH\": \"2107\",\\n            \"HIGHESTPRICE\": 6884,\\n            \"LOWESTPRICE\": 6672,\\n            \"OPENINTEREST\": 1336,\\n            \"OPENINTERESTCHG\": -87,\\n            \"OPENPRICE\": 6702,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 6694,\\n            \"PRODUCTGROUPID\": \"sp      \",\\n            \"PRODUCTID\": \"sp_f    \",\\n            \"PRODUCTNAME\": \"纸浆                \",\\n            \"PRODUCTSORTNO\": 110,\\n            \"SETTLEMENTPRICE\": 6804,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 2339,\\n            \"ZD1_CHG\": 172,\\n            \"ZD2_CHG\": 110\\n        },\\n        {\\n            \"CLOSEPRICE\": 6814,\\n            \"DELIVERYMONTH\": \"2108\",\\n            \"HIGHESTPRICE\": 6814,\\n            \"LOWESTPRICE\": 6572,\\n            \"OPENINTEREST\": 725,\\n            \"OPENINTERESTCHG\": -50,\\n            \"OPENPRICE\": 6594,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 6592,\\n            \"PRODUCTGROUPID\": \"sp      \",\\n            \"PRODUCTID\": \"sp_f    \",\\n            \"PRODUCTNAME\": \"纸浆                \",\\n            \"PRODUCTSORTNO\": 110,\\n            \"SETTLEMENTPRICE\": 6698,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 1432,\\n            \"ZD1_CHG\": 222,\\n            \"ZD2_CHG\": 106\\n        },\\n        {\\n            \"CLOSEPRICE\": 6728,\\n            \"DELIVERYMONTH\": \"2109\",\\n            \"HIGHESTPRICE\": 6742,\\n            \"LOWESTPRICE\": 6470,\\n            \"OPENINTEREST\": 8706,\\n            \"OPENINTERESTCHG\": 1492,\\n            \"OPENPRICE\": 6500,\\n            \"ORDERNO\": 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\"PRODUCTSORTNO\": 110,\\n            \"SETTLEMENTPRICE\": 6572,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 10,\\n            \"ZD1_CHG\": 258,\\n            \"ZD2_CHG\": 166\\n        },\\n        {\\n            \"CLOSEPRICE\": 6614,\\n            \"DELIVERYMONTH\": \"2111\",\\n            \"HIGHESTPRICE\": 6614,\\n            \"LOWESTPRICE\": 6474,\\n            \"OPENINTEREST\": 32,\\n            \"OPENINTERESTCHG\": 4,\\n            \"OPENPRICE\": 6474,\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": 6426,\\n            \"PRODUCTGROUPID\": \"sp      \",\\n            \"PRODUCTID\": \"sp_f    \",\\n            \"PRODUCTNAME\": \"纸浆                \",\\n            \"PRODUCTSORTNO\": 110,\\n            \"SETTLEMENTPRICE\": 6564,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 7,\\n            \"ZD1_CHG\": 188,\\n            \"ZD2_CHG\": 138\\n        },\\n        {\\n            \"CLOSEPRICE\": 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\"PRODUCTSORTNO\": 110,\\n            \"SETTLEMENTPRICE\": 6402,\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 2,\\n            \"ZD1_CHG\": 12,\\n            \"ZD2_CHG\": 12\\n        },\\n        {\\n            \"CLOSEPRICE\": \"\",\\n            \"DELIVERYMONTH\": \"小计\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 421391,\\n            \"OPENINTERESTCHG\": 28567,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 50,\\n            \"PRESETTLEMENTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"sp      \",\\n            \"PRODUCTID\": \"sp_f    \",\\n            \"PRODUCTNAME\": \"纸浆                \",\\n            \"PRODUCTSORTNO\": 110,\\n            \"SETTLEMENTPRICE\": \"\",\\n            \"TASVOLUME\": \"\",\\n            \"VOLUME\": 554648,\\n            \"ZD1_CHG\": \"\",\\n            \"ZD2_CHG\": \"\"\\n        },\\n        {\\n            \"CLOSEPRICE\": \"\",\\n            \"DELIVERYMONTH\": \"\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": 6762240,\\n            \"OPENINTERESTCHG\": 288493,\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 0,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"\",\\n            \"PRODUCTID\": \"总计\",\\n            \"PRODUCTNAME\": \"总计\",\\n            \"PRODUCTSORTNO\": 9999,\\n            \"SETTLEMENTPRICE\": \"\",\\n            \"TASVOLUME\": 0,\\n            \"VOLUME\": 9099800,\\n            \"ZD1_CHG\": \"\",\\n            \"ZD2_CHG\": \"\"\\n        },\\n        {\\n            \"CLOSEPRICE\": \"\",\\n            \"DELIVERYMONTH\": \"2104\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": \"\",\\n            \"OPENINTERESTCHG\": \"\",\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 999,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"sc_tas  \",\\n            \"PRODUCTID\": \"sc_tas  \",\\n            \"PRODUCTNAME\": \"原油TAS             \",\\n            \"PRODUCTSORTNO\": 90,\\n            \"SETTLEMENTPRICE\": \"\",\\n            \"TASVOLUME\": 0,\\n            \"VOLUME\": \"\",\\n            \"ZD1_CHG\": \"\",\\n            \"ZD2_CHG\": \"\"\\n        },\\n        {\\n            \"CLOSEPRICE\": \"\",\\n            \"DELIVERYMONTH\": \"小计\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"OPENINTEREST\": \"\",\\n            \"OPENINTERESTCHG\": \"\",\\n            \"OPENPRICE\": \"\",\\n            \"ORDERNO\": 999,\\n            \"ORDERNO2\": 0,\\n            \"PRESETTLEMENTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"sc_tas  \",\\n            \"PRODUCTID\": \"sc_tas  \",\\n            \"PRODUCTNAME\": \"原油TAS             \",\\n            \"PRODUCTSORTNO\": 90,\\n            \"SETTLEMENTPRICE\": \"\",\\n            \"TASVOLUME\": 0,\\n            \"VOLUME\": \"\",\\n            \"ZD1_CHG\": \"\",\\n            \"ZD2_CHG\": \"\"\\n        }\\n    ],\\n    \"o_curmetalindex\": [\\n        {\\n            \"AVGPRICE\": 3604.04,\\n            \"CLOSEPRICE\": 3641.75,\\n            \"HIGHESTPRICE\": 3649.08,\\n            \"LASTPRICE\": 3641.75,\\n            \"LOWESTPRICE\": 3584.5,\\n            \"OPENPRICE\": 3590.6,\\n            \"PRECLOSEPRICE\": 3576.09,\\n            \"SETTLEMENTPRICE\": 3607.09,\\n            \"TRADINGDAY\": \"20210219\",\\n            \"UPDOWN\": 65.66,\\n            \"UPDOWN1\": 95.38,\\n            \"UPDOWN2\": 60.72\\n        }\\n    ],\\n    \"o_curproduct\": [\\n        {\\n            \"AVGPRICE\": 63532.911,\\n            \"HIGHESTPRICE\": 64510,\\n            \"LOWESTPRICE\": 62890,\\n            \"PRODUCTGROUPID\": \"cu      \",\\n            \"PRODUCTID\": \"cu_f    \",\\n            \"PRODUCTNAME\": \"铜                  \",\\n            \"PRODUCTSORTNO\": 10,\\n            \"TURNOVER\": 1283.9588265,\\n            \"VOLUME\": 404187,\\n            \"YEARTURNOVER\": 22620.2111585,\\n            \"YEARVOLUME\": 765.7248\\n        },\\n        {\\n            \"AVGPRICE\": 56531.237,\\n            \"HIGHESTPRICE\": 57700,\\n            \"LOWESTPRICE\": 56060,\\n            \"PRODUCTGROUPID\": \"bc      \",\\n            \"PRODUCTID\": \"bc_f    \",\\n            \"PRODUCTNAME\": \"铜(BC)              \",\\n            \"PRODUCTSORTNO\": 15,\\n            \"TURNOVER\": 108.4212585,\\n            \"VOLUME\": 38358,\\n            \"YEARTURNOVER\": 1529.516483,\\n            \"YEARVOLUME\": 58.0883\\n        },\\n        {\\n            \"AVGPRICE\": 16510.447,\\n            \"HIGHESTPRICE\": 16680,\\n            \"LOWESTPRICE\": 15985,\\n            \"PRODUCTGROUPID\": \"al      \",\\n            \"PRODUCTID\": \"al_f    \",\\n            \"PRODUCTNAME\": \"铝            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\"PRODUCTSORTNO\": 40,\\n            \"TURNOVER\": 93.98472925,\\n            \"VOLUME\": 121270,\\n            \"YEARTURNOVER\": 1924.208259,\\n            \"YEARVOLUME\": 254.759\\n        },\\n        {\\n            \"AVGPRICE\": 142012.771,\\n            \"HIGHESTPRICE\": 144990,\\n            \"LOWESTPRICE\": 139000,\\n            \"PRODUCTGROUPID\": \"ni      \",\\n            \"PRODUCTID\": \"ni_f    \",\\n            \"PRODUCTNAME\": \"镍                  \",\\n            \"PRODUCTSORTNO\": 45,\\n            \"TURNOVER\": 1017.8978382,\\n            \"VOLUME\": 716765,\\n            \"YEARTURNOVER\": 35514.4440715,\\n            \"YEARVOLUME\": 2682.2184\\n        },\\n        {\\n            \"AVGPRICE\": 178566.785,\\n            \"HIGHESTPRICE\": 182270,\\n            \"LOWESTPRICE\": 174350,\\n            \"PRODUCTGROUPID\": \"sn      \",\\n            \"PRODUCTID\": \"sn_f    \",\\n            \"PRODUCTNAME\": \"锡                  \",\\n            \"PRODUCTSORTNO\": 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33,\\n            \"YEARTURNOVER\": 0.4858949,\\n            \"YEARVOLUME\": 0.1037\\n        },\\n        {\\n            \"AVGPRICE\": 4679.639,\\n            \"HIGHESTPRICE\": 4794,\\n            \"LOWESTPRICE\": 4368,\\n            \"PRODUCTGROUPID\": \"hc      \",\\n            \"PRODUCTID\": \"hc_f    \",\\n            \"PRODUCTNAME\": \"热轧卷板            \",\\n            \"PRODUCTSORTNO\": 85,\\n            \"TURNOVER\": 245.2275903,\\n            \"VOLUME\": 524031,\\n            \"YEARTURNOVER\": 9000.195101,\\n            \"YEARVOLUME\": 2014.7625\\n        },\\n        {\\n            \"AVGPRICE\": 15105.537,\\n            \"HIGHESTPRICE\": 15360,\\n            \"LOWESTPRICE\": 14800,\\n            \"PRODUCTGROUPID\": \"ss      \",\\n            \"PRODUCTID\": \"ss_f    \",\\n            \"PRODUCTNAME\": \"不锈钢              \",\\n            \"PRODUCTSORTNO\": 87,\\n            \"TURNOVER\": 132.15682925,\\n            \"VOLUME\": 174978,\\n            \"YEARTURNOVER\": 3417.00255675,\\n            \"YEARVOLUME\": 478.2257\\n        },\\n        {\\n            \"AVGPRICE\": 391.782,\\n            \"HIGHESTPRICE\": 410.8,\\n            \"LOWESTPRICE\": 379,\\n            \"PRODUCTGROUPID\": \"sc      \",\\n            \"PRODUCTID\": \"sc_f    \",\\n            \"PRODUCTNAME\": \"原油                \",\\n            \"PRODUCTSORTNO\": 90,\\n            \"TURNOVER\": 565.901376,\\n            \"VOLUME\": 144443,\\n            \"YEARTURNOVER\": 17469.915203,\\n            \"YEARVOLUME\": 511.2092\\n        },\\n        {\\n            \"AVGPRICE\": 3192.923,\\n            \"HIGHESTPRICE\": 3347,\\n            \"LOWESTPRICE\": 3108,\\n            \"PRODUCTGROUPID\": \"lu      \",\\n            \"PRODUCTID\": \"lu_f    \",\\n            \"PRODUCTNAME\": \"低硫燃料油          \",\\n            \"PRODUCTSORTNO\": 91,\\n            \"TURNOVER\": 27.2902303,\\n            \"VOLUME\": 85471,\\n            \"YEARTURNOVER\": 696.1571358,\\n            \"YEARVOLUME\": 242.6646\\n        },\\n        {\\n            \"AVGPRICE\": 2356.698,\\n            \"HIGHESTPRICE\": 2420,\\n            \"LOWESTPRICE\": 2305,\\n            \"PRODUCTGROUPID\": \"fu      \",\\n            \"PRODUCTID\": \"fu_f    \",\\n            \"PRODUCTNAME\": \"燃料油              \",\\n            \"PRODUCTSORTNO\": 92,\\n            \"TURNOVER\": 277.8864542,\\n            \"VOLUME\": 1179135,\\n            \"YEARTURNOVER\": 9229.8364066,\\n            \"YEARVOLUME\": 4214.6206\\n        },\\n        {\\n            \"AVGPRICE\": 3006.829,\\n            \"HIGHESTPRICE\": 3176,\\n            \"LOWESTPRICE\": 2950,\\n            \"PRODUCTGROUPID\": \"bu      \",\\n            \"PRODUCTID\": \"bu_f    \",\\n            \"PRODUCTNAME\": \"石油沥青            \",\\n            \"PRODUCTSORTNO\": 95,\\n            \"TURNOVER\": 170.1808326,\\n            \"VOLUME\": 565981,\\n            \"YEARTURNOVER\": 4930.0884846,\\n            \"YEARVOLUME\": 1808.0886\\n        },\\n        {\\n            \"AVGPRICE\": 15434.216,\\n            \"HIGHESTPRICE\": 16600,\\n            \"LOWESTPRICE\": 15135,\\n            \"PRODUCTGROUPID\": \"ru      \",\\n            \"PRODUCTID\": \"ru_f    \",\\n            \"PRODUCTNAME\": \"天然橡胶            \",\\n            \"PRODUCTSORTNO\": 100,\\n            \"TURNOVER\": 1032.257299,\\n            \"VOLUME\": 668811,\\n            \"YEARTURNOVER\": 23940.147209,\\n            \"YEARVOLUME\": 1642.9982\\n        },\\n        {\\n            \"AVGPRICE\": 11435.682,\\n            \"HIGHESTPRICE\": 11860,\\n            \"LOWESTPRICE\": 11020,\\n            \"PRODUCTGROUPID\": \"nr      \",\\n            \"PRODUCTID\": \"nr_f    \",\\n            \"PRODUCTNAME\": \"20号胶              \",\\n            \"PRODUCTSORTNO\": 105,\\n            \"TURNOVER\": 68.1486585,\\n            \"VOLUME\": 59593,\\n            \"YEARTURNOVER\": 989.498244,\\n            \"YEARVOLUME\": 91.2344\\n        },\\n        {\\n            \"AVGPRICE\": 6924.408,\\n            \"HIGHESTPRICE\": 7010,\\n            \"LOWESTPRICE\": 6340,\\n            \"PRODUCTGROUPID\": \"sp      \",\\n            \"PRODUCTID\": \"sp_f    \",\\n            \"PRODUCTNAME\": \"纸浆                \",\\n            \"PRODUCTSORTNO\": 110,\\n            \"TURNOVER\": 384.0609028,\\n            \"VOLUME\": 554648,\\n            \"YEARTURNOVER\": 12103.4026036,\\n            \"YEARVOLUME\": 1892.8151\\n        },\\n        {\\n            \"AVGPRICE\": \"\",\\n            \"HIGHESTPRICE\": \"\",\\n            \"LOWESTPRICE\": \"\",\\n            \"PRODUCTGROUPID\": \"\",\\n            \"PRODUCTID\": \"总计\",\\n            \"PRODUCTNAME\": \"总计\",\\n            \"PRODUCTSORTNO\": 9999,\\n            \"TURNOVER\": 8817.9864906,\\n            \"VOLUME\": 9099800,\\n            \"YEARTURNOVER\": 251295.70090485,\\n            \"YEARVOLUME\": 29828.9229\\n        }\\n    ],\\n    \"o_day\": \"19\",\\n    \"o_month\": \"02\",\\n    \"o_msg\": \"交易快讯查询成功\",\\n    \"o_total_num\": \"6882\",\\n    \"o_trade_day\": \"6890\",\\n    \"o_weekday\": \"五\",\\n    \"o_year\": \"2021\",\\n    \"o_year_num\": \"30\",\\n    \"print_date\": \"20210219 20:00:45\",\\n    \"report_date\": \"20210219\",\\n    \"showlength\": \"1\",\\n    \"update_date\": \"20210219 20:00:44\"\\n}'"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 写入生成 JSON 文件\n",
    "# 方法一：使用 json.dumps() 方法生成 JSON 文件\n",
    "json_text = json.dumps(json_data, sort_keys=True, indent=4, ensure_ascii=False) # 参数设置为 ensure_ascii=False，解决中文显示乱码问题\n",
    "with open('./json_text.json', 'w') as f:\n",
    "    f.write(json_text)\n",
    "json_text"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "data": {
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      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 方法二：使用 pandas 库的 to_json() 方法生成 JSON 文件\n",
    "json_pd = df_jsonpath.to_json(orient='table',force_ascii=False) # 参数设置为 force_ascii=False，解决中文显示乱码问题\n",
    "with open('./json_pd.json', 'w') as f:\n",
    "    f.write(json_pd)\n",
    "json_pd"
   ]
  }
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